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TR 23.923
Combined GSM and Mobile IP mobility handling in UMTS IP CN

3GPP‑Page   ETSI‑search  
V3.0.0 (PDF)  2000/06  76 p.
Rapporteur:
Ms. Hubbard, Elisabeth

full Table of Contents for  TR 23.923  Word version:  3.0.0

0Introduction  p. 6
1Scope  p. 7
2References  p. 7
3Definitions and abbreviations  p. 9
3.1Definitions  p. 9
3.2Abbreviations  p. 11
4Working Assumptions  p. 12
5Requirements on UMTS Packet Domain  p. 12
6Current Status of Mobile IP, March 1999  p. 13
6.1Mobile IP RFC's  p. 13
6.2Mobile IP+ Drafts  p. 14
6.3Basic Principles of Mobile IPv4  p. 16
6.4Differences between IPv4 and IPv6  p. 17
6.5Reverse tunnels  p. 17
6.6Use of Route Optimisation  p. 18
7Stepwise introduction of Mobile IP in the CN  p. 18
7.1Step 1 - Offering Mobile IP(+) service  p. 18
7.2Step 2 - Intermediate GPRS-MIP(+) system  p. 19
7.3Step 3 - Using Mobile IP+ for Intra System Mobility  p. 20
8General Considerations and Explanations  p. 22
8.1The Care-of address  p. 22
8.1.1Saving Radio Resources and IPv4 Addresses with FA Care-of Addresses  p. 22
8.1.2The Care-of address in IPv6  p. 22
8.2The Home Address  p. 22
8.2.1Permanent and Temporary Home Addresses  p. 22
8.2.2Private Home Address  p. 23
8.3Location of the HA and the FA  p. 23
8.4Terminal aspects  p. 23
8.4.1Terminal Model  p. 23
8.5Need for Broadcasting over Radio  p. 23
8.6Security  p. 24
8.6.1Mobile IPv4 control messages: security issues  p. 25
8.6.2MIPv4 Protocol Security Analysis  p. 25
8.6.2.1FA-ME Considerations  p. 25
8.6.2.2HA-ME Considerations  p. 25
8.6.2.3ME-CH Considerations  p. 26
8.6.2.4Geographical position  p. 26
8.6.2.5Signalling  p. 26
8.6.2.6Header compression and security  p. 26
8.6.3Screening and flooding  p. 26
8.7AAA (Authentication, Authorisation and Accounting) and Roaming issues  p. 26
8.7.1AAA Support of MIP in UMTS  p. 28
8.8UMTS/GPRS Charging  p. 29
9First Step: MIP(+) in overlay to GPRS  p. 31
9.1General Design Criteria  p. 31
9.2Assumptions  p. 31
9.2.1Signalling  p. 31
9.2.2GGSN/FA  p. 31
9.2.3Home Network  p. 31
9.3Using the APN to Find a GGSN/FA  p. 31
9.4Detailed Description of Mobile IP(+) Registration in a UMTS/GPRS PLMN  p. 32
9.4.1AT Command  p. 33
9.4.2Activate PDP Context Request  p. 33
9.4.3Select Suitable GGSN  p. 34
9.4.4Create PDP Context Request  p. 34
9.4.5GGSN/FA Functionality  p. 34
9.4.6Create PDP Context Response  p. 35
9.4.7Activate PDP Context Accept  p. 35
9.4.8Foreign Agent Advertisement  p. 35
9.4.9Mobile IP(+) Registration Request  p. 36
9.4.10Mobile IP(+) Registration Reply  p. 36
9.4.11Insert PDP Address in GGSN PDP Context  p. 37
9.5The UMTS/GPRS Detach Procedure  p. 37
9.6Summary of Alterations of and Additions to Current GPRS Standards for Step 1  p. 37
10Second Step: Intermediate UMTS/GPRS-MIP(+) System  p. 37
10.1The GGSN/FA Change  p. 38
10.2GGSN/FA denial of service  p. 39
11Third Step: Target Architecture  p. 41
11.1General Design Criteria for step 3  p. 42
11.2Assumptions  p. 42
11.3Using the APN to select MIP service  p. 42
11.4Session activation for ME requesting MIP(+) service and equipped with a MIP(+) client  p. 42
11.4.1AT Command  p. 43
11.4.2Activate PDP Context Request  p. 43
11.4.3Select MIP service  p. 44
11.4.4Activate PDP Context Accept  p. 44
11.4.5Foreign Agent Advertisement  p. 44
11.4.6Mobile IP(+) Registration Request  p. 45
11.4.7Mobile IP(+) Registration Reply  p. 45
11.4.8Insert PDP Address in IGSN PDP Context  p. 45
11.5User mobility support for ME requesting MIP(+) service and equipped with a MIP(+) client (GPRS)  p. 46
11.5.1Inter IGSN ROUTING AREA update for terminals requesting MIP(+) service and equipped with a MIP(+) client  p. 47
11.5.1.1Routing Area update request  p. 47
11.5.1.2SGSN context Request/Response  p. 47
11.5.1.3Security functions  p. 48
11.5.1.4SGSN Context Acknowledge  p. 48
11.5.1.5Forward Packets  p. 48
11.5.1.6Update Location  p. 49
11.5.1.7Cancel location and Cancel location Ack  p. 49
11.5.1.8Insert Subscriber Data and Insert Subscriber Data Ack  p. 49
11.5.1.9Update Location Ack  p. 49
11.5.1.10Routeing Area Update Accept  p. 50
11.5.1.11Routeing Area Update Complete  p. 50
11.5.1.12Mobile IP (+) Agent Advertisement  p. 50
11.5.1.13MIP registration  p. 50
11.5.2Intra IGSN ROUTING AREA update for terminals requesting MIP(+) service and equipped with a MIP(+) client  p. 51
11.5.2.1Routeing Area Update Request  p. 51
11.5.2.2Security functions  p. 51
11.5.2.3A Routeing Area Update Accept  p. 52
11.5.2.4Routeing Area Update Complete  p. 52
11.5.2.5Mobile IP(+) Agent Advertisement  p. 52
11.5.2.6MIP(+) registration  p. 52
11.6User mobility support for ME requesting MIP(+) service and equipped with a MIP(+) client (UMTS)  p. 53
11.6.1SRNC Relocation required  p. 53
11.6.2Forward SRNC relocation request  p. 54
11.6.3SRNC Relocation Request and SRNC Relocation Proceeding 1  p. 54
11.6.4Forward SRNC Relocation Response  p. 54
11.6.5SRNC Relocation Proceeding 2  p. 54
11.6.6SRNC Relocation Commit  p. 55
11.6.7SRNC Relocation Detect and SRNC Relocation Complete  p. 55
11.6.8New MM system Information and RLC restart  p. 55
11.6.9Routing Area Update Request  p. 55
11.6.10Mobile IP (+) Agent advertisement  p. 56
11.6.11MIP registration  p. 56
11.6.12Complete SRNC Relocation  p. 56
11.6.13Release  p. 56
11.6.14Update GPRS location, Cancel location, Insert subscriber data  p. 57
11.6.15Routing Area Update Accept and Complete  p. 57
11.7Traffic Cases  p. 57
11.7.1Sending Packets  p. 57
11.7.2Receiving Packets  p. 57
11.8Service Support  p. 59
11.8.1QoS - the Use of Differentiated and Integrated Services  p. 59
11.8.1.1Differentiated Services  p. 59
11.8.1.2Integrated Services  p. 60
11.8.1.3Mobile IP and Integrated Services (RSVP)  p. 60
11.8.2Multi Protocol Support  p. 61
11.8.3Support of VHE  p. 61
12Compatibility Issues  p. 61
12.1IPv4 - IPv6  p. 61
12.1.1Mixed IPv4 - IPv6 UMTS Networks  p. 61
12.1.2Network Elements that need changes if migrating from MIP(+)v4 to MIP(+)v6  p. 62
12.2UMTS/GPRS - Mobile IP(+)  p. 62
12.2.1Support of Non-MIP(+) Mobiles in a MIP+ based backbone  p. 63
12.2.1.1Pre Mobile IP(+) situation  p. 63
12.2.1.2Handling ME's without MIP(+) functionality in a MIP+ based backbone  p. 64
12.2.2Interworking with GPRS PLMNs  p. 65
12.2.3Interworking between UMTS/GPRS PLMNs and Mobile IPv6  p. 65
13Driving Forces  p. 65
13.1Mobile IP+ is standardised by the IETF  p. 65
13.2Mobile IP(+) is an end-to-end solution  p. 66
13.3Mobile IP(+) can support cellular and non cellular access  p. 66
13.4Mobile IP(+) does not impact location registers  p. 66
14Open Issues  p. 66
15Conclusions  p. 67
AMobile IP  p. 68
A.1Basic architecture  p. 68
A.2Route optimisation  p. 69
A.2.1The solution proposed for IPv4  p. 69
A.2.2The solution proposed for IPv6  p. 71
A.3Security aspects  p. 72
$Document change history  p. 73

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